CN107748281A - Interconnected loop test terminal with state recognition - Google Patents

Interconnected loop test terminal with state recognition Download PDF

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Publication number
CN107748281A
CN107748281A CN201711086067.1A CN201711086067A CN107748281A CN 107748281 A CN107748281 A CN 107748281A CN 201711086067 A CN201711086067 A CN 201711086067A CN 107748281 A CN107748281 A CN 107748281A
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CN
China
Prior art keywords
line ball
test
conductor
connection
terminal
Prior art date
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Granted
Application number
CN201711086067.1A
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Chinese (zh)
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CN107748281B (en
Inventor
陈晓彬
孙玉彤
倪苗升
陈庆鸿
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ZHUHAI ELECTRIC POWER DESIGN INSTITUTE CO LTD
Jieyang Power Supply Bureau of Guangdong Power Grid Co Ltd
Original Assignee
ZHUHAI ELECTRIC POWER DESIGN INSTITUTE CO LTD
Jieyang Power Supply Bureau of Guangdong Power Grid Co Ltd
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Application filed by ZHUHAI ELECTRIC POWER DESIGN INSTITUTE CO LTD, Jieyang Power Supply Bureau of Guangdong Power Grid Co Ltd filed Critical ZHUHAI ELECTRIC POWER DESIGN INSTITUTE CO LTD
Priority to CN201711086067.1A priority Critical patent/CN107748281B/en
Publication of CN107748281A publication Critical patent/CN107748281A/en
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Publication of CN107748281B publication Critical patent/CN107748281B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • G01R1/0408Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • G01R1/0416Connectors, terminals
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Abstract

The invention belongs to the technical field of terminal devices, and particularly relates to an interconnection loop test terminal with state recognition. Including insulating casing, experimental wiring testing arrangement, sealed wiring testing arrangement and bridging mechanism, bridging mechanism and experimental wiring testing arrangement, sealed wiring testing arrangement slidable connection, insulating casing, experimental wiring testing arrangement, sealed wiring testing arrangement locate insulating casing in, wherein, bridging mechanism on be equipped with first insulation baffle, first insulation baffle on be equipped with visual window and interface, bridging mechanism on still be equipped with transparent second insulation baffle, second insulation baffle be located under the first insulation baffle. The interconnected loop test terminal with the state recognition function can effectively avoid misoperation, improve the working safety and improve the working efficiency.

Description

A kind of interconnection loop-around test terminal with state recognition
Technical field
The invention belongs to terminal device technical field, is surveyed more particularly, to a kind of interconnection loop with state recognition Try terminal.
Background technology
Power system 220kV and above are provided with failure protection, and have the related protection screen of more sets to be designed with and open The output contact of dynamic failure protection, these contacts realize that related protection screen is protected with failure by controlling cable through binding post Connection between shield screen, when certain set correlation protection screen needs to carry out actuating breaker failure protection functional test, most cases are that failure is protected Shield, which can not stop transport, coordinates test, therefore, it is necessary to disconnect the output contact and failure protection of related protection screen actuating breaker failure protection After the connection in loop, test whether the contact action of its output actuating breaker failure protection is correct, and this wiring is broken in related protection screen It is usually to be carried out at binding post to open operation.
In the prior art, when carrying out the operation of failure protection calibrating terminal, it is necessary to first confirm protection to be measured according to drawing Shield the position where start failure protection binding post, the control cable connection of the failure protection screen side of the binding post is disconnected, and Bandage the control cable lug conductor part of disconnection temporarily with insulating tape, it is when being tested, it is necessary to first straight with universal meter After stream voltage gear confirms that the above-mentioned failure protection calibrating terminal disconnected does not have voltage, then start related protection actuating breaker failure protection Functional test, after the completion of test, need to remove insulating tape again, then the cable of failure protection screen side is connected;This failure Calibrating terminal complex operation is protected, and in operation, many danger be present:1. due to using common binding post, Cannot be distinguished by whether be start failure protection special terminal the conjunction because drawing does not conform to the actual conditions, or staff's carelessness misunderstands can It can cause to tear non-unsuccessful reason loop open by mistake, and actual unsuccessful reason loop is not removed.It is being not isolated from unsuccessful reason loop case Lower progress unsuccessful reason loop test work, will cause to directly initiate operating failure protection function, may result in failure Protection act, cause large-area power-cuts dangerous.2. during the wiring of start failure protection control cable is removed, because cable core band Dc source, removing and wrapping up, including during reconnection, there is the danger for getting an electric shock and touching by mistake operating loop.3. supervised with universal meter Depending on starting test starting failure fuction output contact after the no-voltage of binding post protection screen side.Due to the control cable disconnected before Core insulating wrapping is not enough fastened, and easily makes live part exposed, it is possible to testing crew is caused to get an electric shock and injured, is also easily damaged Hinder tester, it is easier to cause failure protection to malfunction, and also failure terminal and other loop terminals indistinctions, test starting Failure fuction output contact, which may touch other terminals by mistake, causes the accidents such as mistrip to occur;4. in reconnection, having very much can Because eyes and terminal be not tired after same level height, or continuous work wiring can be caused to recover positional fault.This In the case of kind, failure protection may be caused not start, that is, lose failure protection, cause tripping operation of bypassing the immediate leadership, expand accident.And lose There was only that one end is powered during clever loop normal operation, if loose contact or misconnection, be a potential hidden danger, can not send out in time It is existing.
Therefore, conventional common terminal is applied to unsuccessful reason loop and main transformer releases and presses off outputing for the needs such as lock debugging again During loop, because its function is single, only by cable connection is torn open, safe practice is arranged during could meeting failure loop-around test The needs applied.And taking out stitches necessarily causes a series of risk points as described above.These dangerous spots fully rely on the subjectivity of staff Control, error probability height occurs, and it is serious that consequence once occurs.Major safety risks be present, can not meet that safety in production requires.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of interconnection loop-around test with state recognition Terminal, it can effectively avoid maloperation.
To solve the above problems, technical scheme provided by the invention is:A kind of interconnection loop-around test with state recognition Terminal, including insulation crust, test connection test device, closing wiring test device and bridge joint mechanism, described bridge machine Structure and test connection test device, the closing slideable connection of wiring test device, described insulation crust, test connection test Device, closing wiring test device are located in insulation crust, wherein, described bridge joint mechanism is provided with the first insulation barrier, institute The first insulation barrier stated is provided with visual windows and interface, and the second transparent insulation is additionally provided with described bridge joint mechanism Baffle plate, the second described insulation barrier are located at immediately below the first insulation barrier.
In the present invention, test connection test device during calibrating terminal normal operating conditions, in closing wiring test device Wire is connected to, loop where terminal is in charging operation state, and the test connection test device of calibrating terminal, closing wiring are surveyed Trial assembly is put to be connected by bridging mechanism;First insulation barrier is located at test connection test device, closing wiring test device top, Operating personnel can not carry out test job under the non-off-state of calibrating terminal, meanwhile, operating personnel can also pass through visual window The mouth observation affiliated state of calibrating terminal.
Further, described test connection test device includes the first line ball conductor, the first line ball bolt and test Jack;The first described line ball bolt is on the first line ball conductor, and described test jack is on the first line ball conductor;Institute The closing wiring test device stated includes the second line ball conductor and the second line ball bolt, and the second described line ball bolt is located at second On line ball conductor;Described bridge joint mechanism and the first line ball conductor and the second line ball conductor slidable connection, make at calibrating terminal In disconnection or connection status.
Further, described visual windows include the first visual windows and the second visual windows;The first described line ball Conductor is provided with the first reflecting marking structure, and the second described line ball conductor is reflective provided with the second reflecting marking structure and the 3rd Identify structure;When calibrating terminal is in connection status, the first described reflecting marking structure and the second reflecting marking structure difference Immediately below the first visual windows and the second visual windows;When calibrating terminal is off, the 3rd reflecting marking structure Immediately below the second visual windows, the fracture between the first line ball conductor and the second line ball conductor is being located at the first visual windows just Lower section.Wherein, the first visual windows and the second visual windows can be the window or be directly window form that transparent material is set, Do not set shelter.When the first reflecting marking structure is located at immediately below the first visual windows, the second reflecting marking structure is located at second Then represent that calibrating terminal be in connection status immediately below visual windows, meanwhile, when bridge joint mechanism is to closing wiring test device end Slide, calibrating terminal is in disconnection process, the first visual windows are moved to the first line ball conductor and the second line ball conductor connects The surface of the fracture at place is connect, the first line ball conductor and the second line ball conductor can be observed by the first visual windows whether in disconnected Open state, when being not directly visible the first reflecting marking structure from the first visual windows, but it can be seen from the second visual windows The 3rd reflecting marking structure is observed, then represents calibrating terminal and is off.Wherein, the first reflecting marking structure and second anti- The color that cursor knows structure is identical, different from the color of the 3rd reflecting marking structure.
Further, it is described when described bridge joint mechanism is connected with the first line ball conductor and the second line ball conductor respectively First insulation barrier is located above the first line ball bolt and test jack, and the interface on the first insulation barrier is positioned at the first pressure Directly over line bolt;When described bridge joint mechanism disconnects with the first line ball conductor and the second line ball conductor, described interface position In the surface of test jack.
In the present invention, the first insulation barrier is set, and when calibrating terminal is in connection status, test jack is exhausted by first Edge baffle plate blocks, and operating personnel can not carry out test experiments, only when bridge joint mechanism slide into closing wiring test device end with When test connection test lead disconnects, spliced eye is slid into directly over test jack, and operating personnel can carry out test experiments, is ensured Only calibrating terminal be off it is lower could carry out test experiments, avoid operating personnel's maloperation, do not disconnect just Test experiments are carried out, cause security incident.In addition, when calibrating terminal is off, the second insulation barrier is also prevented from Operating personnel touch the first line ball conductor or the second line ball conductor from visual windows, can prevent personnel or instrument contacts electricity Source, cause personnel's injury, device damage or error action of device.
On the other hand, when calibrating terminal is off, test plug is inserted from the spliced eye on the first insulation barrier After entering in test jack, because test plug is inserted from interface, therefore, because the presence of test plug, insulation barrier It is immovable, so as to limit bridge joint mechanism it is immovable, ensure that under test mode, can not sliding bridge connection mechanism make test lead Son be in connection status, and when avoiding operating personnel and testing, will bridge mechanism slips by mistake causes security incident.
Further, the first described line ball bolt and the second line ball bolt surrounding are enclosed provided with insulation resistance piece, described Insulation resistance piece is integrated with insulation crust;The first described line ball bolt and the upper surface of the second line ball bolt are provided with exhausted Edge layer.When the first line ball bolt and the second line ball bolt are located at impaction state, insulation prevents piece by line ball bolt and nut Conducting position all blocks, and coordinates the insulating barrier of line ball bolt upper surface, can prevent personnel or instrument contacts power supply, cause personnel Injury, device damage or error action of device.
Further, described bridge joint mechanism include it is upper in flakes, under in flakes with the 3rd hold-down bolt, the first described line ball One side pressure of conductor and the second line ball conductor located at it is upper in flakes and under in flakes between, the 3rd described hold-down bolt is arranged in company Piece and under in flakes on.
Further, the second described line ball conductor is provided with chute with bridging mechanism connection end, and described bridge joint mechanism is past Detent ends sliding bridge connection mechanism disconnects with the first line ball conductor.
Further, compression shell fragment is additionally provided with described test jack.Compress shell fragment and coordinate test plug, test can be made Plug contacts more close with test jack.
Compared with prior art, beneficial effect is:A kind of interconnection loop-around test with state recognition provided by the invention Terminal, by setting the first insulation barrier, visual windows and spliced eye be set on the first insulation barrier, test plug can only be from Spliced eye inserts, and in the case where not disconnecting calibrating terminal, spliced eye is not aligned with instrument connection therefore can not tested, only Test jack could be inserted from spliced eye in a disconnected situation, ensure that can not carry out test in the case where not disconnecting in fact Test, avoid maloperation;Simultaneously, moreover it is possible to observe disconnection or connection status by visual windows, further prompt operator Member avoids maloperation;On the other hand, after test plug insertion test jack, because test plug hinders the movement of the first insulation barrier, So as to ensure that, calibrating terminal operation can not be connection status by operating personnel in test process, and avoiding is grasped more by mistake Make, effectively increase the security of operation, also improve operating efficiency.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention.
Fig. 2 is the first insulation barrier front view of the invention.
Fig. 3 is the first insulation barrier top view of the invention.
Fig. 4 is the first line ball conductor and the second line ball conductor top view of the invention.
Fig. 5 is calibrating terminal connection status schematic diagram of the present invention.
Fig. 6 is calibrating terminal off-state schematic diagram of the present invention.
Structural representation when Fig. 7 inserts test plug for the present invention.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent;It is attached in order to more preferably illustrate the present embodiment Scheme some parts to have omission, zoom in or out, do not represent the size of actual product;To those skilled in the art, Some known features and its explanation may be omitted and will be understood by accompanying drawing.Being given for example only property of position relationship described in accompanying drawing Explanation, it is impossible to be interpreted as the limitation to this patent.
As shown in figure 1, a kind of interconnection loop-around test terminal with state recognition, including insulation crust 1, test connection are surveyed 2, closing wiring test device 3 and bridge joint mechanism 4, bridge joint mechanism 4 and test connection test device 2, closing wiring are put in trial assembly 3 slideable connection of test device, insulation crust 1, test connection test device 2, closing wiring test device 3 are outer located at insulation In shell 1, wherein, bridge joint mechanism 4 is provided with the first insulation barrier 5, and the first insulation barrier 5 is provided with visual windows and interface 51, bridge and the second transparent insulation barrier 6 is additionally provided with mechanism 4, the second insulation barrier 6 is located at immediately below the first insulation barrier 5.
In the present invention, test connection test device 2, closing wiring test device 3 during calibrating terminal normal operating conditions On be connected to wire, loop where terminal be in charging operation state, the test connection test device 2 of calibrating terminal, closes and connects Line test device 3 is connected by bridging mechanism 4;First insulation barrier 5 is located at test connection test device 2, closing wiring test The top of device 3, operating personnel can not carry out test job under the non-off-state of calibrating terminal, meanwhile, operating personnel can be with The affiliated state of calibrating terminal is observed by visual windows.
In certain embodiments, test connection test device 2 include the first line ball conductor 21, the first line ball bolt 22 and Test jack 23;First line ball bolt 22 is on the first line ball conductor 21, and test jack 23 is on the first line ball conductor 21; Closing wiring test device 3 includes the second line ball conductor 31 and the second line ball bolt 32, and the second line ball bolt 32 is located at the second pressure On line conductor 31;The line ball conductor 21 of mechanism 4 and first and the slidable connection of the second line ball conductor 31 are bridged, is in calibrating terminal Disconnection or connection status.
Wherein, but window includes the first visual windows 52 and the second visual windows 53;First line ball conductor 21 is provided with First reflecting marking structure 24, the second line ball conductor 31 are provided with the second reflecting marking structure 34 and the 3rd reflecting marking structure 35;When calibrating terminal is in connection status, the first reflecting marking structure 24 and the second reflecting marking structure 34 are located at first respectively Immediately below 52 and second visual windows of visual windows 53;When calibrating terminal is off, the 3rd 35, reflecting marking structure Immediately below the second visual windows 53, the fracture between the first line ball conductor 21 and the second line ball conductor 31 is located at the first visual window Immediately below mouth 52.Wherein, the first visual windows 52 and the second visual windows 53 can be the window or direct that transparent material is set For window form, shelter is not set.When the first reflecting marking structure 24 is located at the underface of the first visual windows 52, the second reflecting sign Know structure 34 and be located at immediately below the second visual windows 53 and then represent that calibrating terminal is in connection status, meanwhile, when bridge mechanism 4 to Close the end of wiring test device 3 to slide, calibrating terminal is in disconnection process, the first visual windows 52 are moved to the first line ball The surface of the junction fracture of 21 and second line ball conductor of conductor 31, the first line ball conductor can be observed by the first visual windows 52 Whether 21 be off with the second line ball conductor 31, when being not directly visible the first reflecting sign from the first visual windows 52 Know structure 24, but the 3rd reflecting marking structure 35 can be observed from the second visual windows 53, then represent calibrating terminal and be in disconnected Open state.Wherein, the first reflecting marking structure 24 is identical with the color of the second reflecting marking structure 34, with the 3rd reflecting marking knot The color of structure 35 is different.
In addition, when bridge joint mechanism 4 is connected with the first line ball conductor 21 and the second line ball conductor 31 respectively, the first insulation barrier 5 positioned at the first line ball bolt 22 and the top of test jack 23, and the interface 51 on the first insulation barrier 5 is located at the first line ball spiral shell Directly over bolt 22;When bridging the line ball conductor 21 of mechanism 4 and first and the disconnection of the second line ball conductor 31, interface 51 is inserted positioned at test The surface in hole 23.
In the present invention, the first insulation barrier 5 is set, and when calibrating terminal is in connection status, test jack 23 is by the One insulation barrier 5 blocks, and operating personnel can not carry out test experiments, only when bridge joint mechanism 4 slides into closing wiring test dress When putting 3 ends with the disconnection of test connection test lead, spliced eye is slid into directly over test jack 23, and operating personnel can be tested Experiment, ensure that only calibrating terminal be off it is lower could carry out test experiments, avoid operating personnel's maloperation, Do not disconnect and just carry out test experiments, cause security incident.In addition, when calibrating terminal is off, the second insulation barrier 6 is also Can prevent operating personnel from touching the first line ball conductor 21 or the second line ball conductor 31 from visual windows, can prevent personnel or Instrument contacts power supply, cause personnel's injury, device damage or error action of device.
On the other hand, when calibrating terminal is off, test plug is inserted from the spliced eye on the first insulation barrier 5 After entering in test jack 23, because test plug is inserted from interface 51, therefore, because the presence of test plug, insulation Baffle plate is immovable, so as to limit bridge joint mechanism 4 it is immovable, ensure that under test mode, can not sliding bridge connection mechanism 4 make Calibrating terminal is in connection status, and when avoiding operating personnel and testing, by mistake sliding bridge joint mechanism 4 causes security incident.
Specifically, the first line ball bolt 22 and the surrounding of the second line ball bolt 32 are enclosed provided with insulation resistance piece 7, insulation resistance piece 7 It is integrated with insulation crust 1;The upper surface of first line ball bolt 22 and the second line ball bolt 32 is provided with insulating barrier.When When one line ball bolt 22 and the second line ball bolt 32 are located at impaction state, insulation prevents piece by line ball bolt and the conductive part of nut Position is all blocked, and is coordinated the insulating barrier of line ball bolt upper surface, can be prevented personnel or instrument contacts power supply, cause personnel to injure, Device damage or error action of device.
Wherein, bridge mechanism 4 include it is upper in flakes 41, under in flakes 42 and the 3rd hold-down bolt 43, the He of the first line ball conductor 21 One side pressure of the second line ball conductor 31 located at it is upper in flakes 41 and under in flakes between 42, the 3rd hold-down bolt 43 is arranged in flakes 41 With under in flakes on 42.Second line ball conductor 31 is provided with chute 33 with bridging the connection end of mechanism 4, and bridge joint mechanism 4 is slided toward the end of chute 33 Dynamic bridge joint mechanism 4 disconnects with the first line ball conductor 21.
In addition, compression shell fragment is additionally provided with test jack 23.Compress shell fragment and coordinate test plug, test plug can be made with surveying Examination jack 23 contacts more close.
Operating principle:
Before test job starts, technical safety measures is arranged:The insulation with observation window is found in related protection screen terminal block Special test terminal in flakes, confirm as needing the terminal tested;The 3rd hold-down bolt 43 is unscrewed, bridge joint mechanism 4 is slided Move to closing wiring test device 3 end, while screw the 3rd hold-down bolt 43;The first line ball is observed through the first visual windows 52 Whether the line ball conductor 31 of conductor 21 and second is off;There is no reflecting marking structure immediately below first visual windows 52, And reflecting marking structure can be observed from the second visual windows 53, then it represents that calibrating terminal has been off, Ke Yijin Row test job.Now, the first insulation barrier 5 all blocks at 2 powered position of terminal test connection test device, tests work Work can be carried out safely;
Because the first insulation barrier of band 5 is as bridge joint mechanism 4 is slided and is moved, bridge joint mechanism 4 disconnects with the first line ball conductor 21 Connect, the spliced eye on the first insulation barrier 5 is located just at the surface of test jack 23, and tester can carry out test work Make.Also, because test plug blocks insulation board movement, therefore, operating personnel can not be by calibrating terminal in test process Return to connection status, i.e., can not sliding bridge connection mechanism 4, ensure the test job period be safe.
After test job terminates, recover technical safety measures:Found in related protection screen terminal block with observation window Insulation special test terminal in flakes, there is no p-wire on the terminal for confirming to be tested;The 3rd hold-down bolt 43 is unscrewed, will Bridge mechanism 4 to slide toward the end of test connection test device 2, the first line ball conductor 21 and the second line ball conductor 31 is passed through bridge machine Structure 4 connects, and recovers calibrating terminal and is in connection status;Now, operating personnel can be from the first visual windows 52 and the second visual window Mouth 53 observes reflecting marking structure, represents that calibrating terminal is recovered to connection status;If not it is observed that reflecting marking knot Structure, then it represents that calibrating terminal does not also recover connection status, it is necessary to continue sliding bridge connection mechanism 4.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.It is all this All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention Protection domain within.

Claims (8)

1. a kind of interconnection loop-around test terminal with state recognition, including insulation crust(1), test connection test device(2)、 Close wiring test device(3)And bridge joint mechanism(4), described bridge joint mechanism(4)With test connection test device(2), envelope Close wiring test device(3)Slideable connection, described insulation crust(1), test connection test device(2), closing wiring Test device(3)Located at insulation crust(1)It is interior, it is characterised in that described bridge joint mechanism(4)It is provided with the first insulation barrier (5), described the first insulation barrier(5)It is provided with visual windows and interface(51), described bridge joint mechanism(4)On also set There is the second transparent insulation barrier(6), described the second insulation barrier(6)Positioned at the first insulation barrier(5)Underface.
2. a kind of interconnection loop-around test terminal with state recognition according to claim 1, it is characterised in that described Test connection test device(2)Including the first line ball conductor(21), the first line ball bolt(22)And test jack(23);It is described The first line ball bolt(22)Located at the first line ball conductor(21)On, described test jack(23)Located at the first line ball conductor (21)On;Described closing wiring test device(3)Including the second line ball conductor(31)With the second line ball bolt(32), it is described Second line ball bolt(32)Located at the second line ball conductor(31)On;Described bridge joint mechanism(4)With the first line ball conductor(21)With Second line ball conductor(31)Slidable connection, calibrating terminal is set to be in disconnection or connection status.
3. a kind of interconnection loop-around test terminal with state recognition according to claim 2, it is characterised in that described Visual windows include the first visual windows(52)With the second visual windows(53);The first described line ball conductor(21)It is provided with the One reflecting marking structure(24), described the second line ball conductor(31)It is provided with the second reflecting marking structure(34)It is reflective with the 3rd Identify structure(35);When calibrating terminal is in connection status, the first described reflecting marking structure(24)With the second reflecting marking Structure(34)It is located at the first visual windows respectively(52)With the second visual windows(53)Underface;Calibrating terminal is off When, the 3rd reflecting marking structure(35)Positioned at the second visual windows(53)Underface, the first line ball conductor(21)With the second line ball Conductor(31)Between fracture be located at the first visual windows(52)Underface.
4. a kind of interconnection loop-around test terminal with state recognition according to claim 2, it is characterised in that described Bridge mechanism(4)Respectively with the first line ball conductor(21)With the second line ball conductor(31)During connection, the first described insulation barrier (5)Positioned at the first line ball bolt(22)And test jack(23)Top, and the first insulation barrier(5)On interface(51)It is located at First line ball bolt(22)Surface;Described bridge joint mechanism(4)With the first line ball conductor(21)With the second line ball conductor(31) During disconnection, described interface(51)Positioned at test jack(23)Surface.
5. a kind of interconnection loop-around test terminal with state recognition according to any one of claim 2 to 4, its feature exist In the first described line ball bolt(22)With the second line ball bolt(32)Surrounding is enclosed provided with insulation resistance piece(7), described insulation Hinder piece(7)With insulation crust(1)It is integrated.
6. a kind of interconnection loop-around test terminal with state recognition according to any one of claim 2 to 4, its feature exist In described bridge joint mechanism(4)Including it is upper in flakes(41), under in flakes(42)With the 3rd hold-down bolt(43), described first pressure Line conductor(21)With the second line ball conductor(31)A side pressure located at it is upper in flakes(41)With under in flakes(42)Between, the described the 3rd Hold-down bolt(43)It is arranged in flakes(41)With under in flakes(42)On.
7. a kind of interconnection loop-around test terminal with state recognition according to claim 6, it is characterised in that described Second line ball conductor(31)With bridging mechanism(4)Connection end is provided with chute(33), described bridge joint mechanism(4)Toward chute(33)End Sliding bridge connection mechanism(4)With the first line ball conductor(21)Disconnect.
8. a kind of interconnection loop-around test terminal with state recognition according to claim 7, it is characterised in that described Test jack(23)Inside it is additionally provided with compression shell fragment.
CN201711086067.1A 2017-11-07 2017-11-07 Interconnection loop test terminal with state recognition Active CN107748281B (en)

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CN103390805A (en) * 2013-07-19 2013-11-13 上海友邦电气(集团)股份有限公司 Test type wiring terminal
CN107144709A (en) * 2017-06-12 2017-09-08 广东电网有限责任公司揭阳供电局 Novel test terminal with misoperation prevention locking function and special plug-in
CN107202910A (en) * 2017-06-12 2017-09-26 广东电网有限责任公司揭阳供电局 Test terminal with function of preventing short circuit and false disconnection
CN107290570A (en) * 2017-07-28 2017-10-24 广东电网有限责任公司揭阳供电局 Failure protection test terminal
CN107300630A (en) * 2017-07-28 2017-10-27 广东电网有限责任公司揭阳供电局 Novel failure protection test terminal

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